富钾硅复合物对水稻土中有效K,Si,Ca,Mg的影响

Effect of the Compound on Available Silicon,Potassium, Calcium and Magnetium in Rice Soils

富钾硅复合物为绿豆岩煅烧产物,本文通过盆栽对比实验研究它对水稻土中有效K,Si,Ca,Mg的影响,结果表明:水稻土中施入K,Si,Ca,Mg后,被水稻带走部分养分,土壤养分仍有变化;尽管富钾硅复合物中的K,Si,Ca,Mg多为枸溶性养分,但均能供给水稻生长发育需要,并具有一定后效.

Pot experiments show: after appling K, Si, Ca, Mg to soils, rice has absorbed part of these fertilizers, and the soil nutrient ingredients still change; Though the nutrient ingredients are mostly citric-acid dissolved in the compound, they can be supplied for rice growing, having a delayed effect.